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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsADP2119ACPZ-1.2-R7
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ADP2119ACPZ-1.2-R7 - Analog Devices Inc.

Manufacturer Part Number
ADP2119ACPZ-1.2-R7
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-ADP2119ACPZ-1.2-R7
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
19,368 pcs available, New & Original
Parts Description
IC REG BUCK 1.2V 2A 10LFCSP
Package
10-LFCSP-WD (3x3)
Data sheet
ADP2119ACPZ-1.2.pdf

PCN Assembly/Origin

2.73KHz.pdf

Other Related Documents

Tape and Reel Packaging.pdf
RoHs Status
ROHS3 Compliant
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In stock: 19368

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Specifications

ADP2119ACPZ-1.2-R7 Tech Specifications
Analog Devices Inc. - ADP2119ACPZ-1.2-R7 technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - ADP2119ACPZ-1.2-R7

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Output (Min/Fixed) 1.2V
Voltage - Output (Max) -
Voltage - Input (Min) 2.3V
Voltage - Input (Max) 5.5V
Topology Buck
Synchronous Rectifier Yes
Supplier Device Package 10-LFCSP-WD (3x3)
Series -
Package / Case 10-VFDFN Exposed Pad, CSP
Product Attribute Attribute Value
Package Tape & Reel (TR)
Output Type Fixed
Output Configuration Positive
Operating Temperature -40°C ~ 125°C (TJ)
Number of Outputs 1
Mounting Type Surface Mount
Function Step-Down
Frequency - Switching 1.2MHz
Current - Output 2A
Base Product Number ADP2119

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

ADP2119ACPZ-1.2-R7 Image
ADP2119ACPZ-1.2-R7 (1)

Manufacturer Part Number

ADP2119ACPZ-1.2-R7

Manufacturer

Analog Devices

Introduction

The ADP2119ACPZ-1.2-R7 is a highly integrated, high-efficiency, low-ripple synchronous buck regulator that operates from 2.3V to 5.5V and delivers up to 2A output current.

Product Features and Performance

Step-Down Function

Output Configuration is Positive

Topology is Buck

Output Type is Fixed with 1.2V output voltage

Single Output

Synchronous Rectifier for enhanced efficiency

High Switching Frequency of 1.2MHz

Suitable for operating temperatures from -40°C to 125°C

Surface Mount Package makes it ideal for compact circuit boards

Product Advantages

High efficiency due to synchronous rectification

High power density with small package size

Low output ripple

Wide input voltage range suitable for various applications

Fast transient response

Key Technical Parameters

Input Voltage Range: 2.3V to 5.5V

Output Voltage: 1.2V (Fixed)

Output Current: 2A

Switching Frequency: 1.2MHz

Operating Temperature: -40°C to 125°C (TJ)

Quality and Safety Features

Built with high-quality materials ensuring reliability and durability

Over-temperature and over-current protection

Compatibility

Compatible with various electronic applications requiring a 1.2V fixed output

Surface Mount Mounting Type applicable for modern PCB designs

Application Areas

Communications Equipment

Consumer Electronics

Industrial Controls

Portable Devices

Product Lifecycle

Currently Active

Not near discontinuation with ongoing support and availability

Several Key Reasons to Choose This Product

Consistently stable and high-efficiency performance across full range of input

Versatile application suitability due to wide operating voltage and temperature range

Compact and reliable design featuring advanced safety features

High switching frequency minimizing the size of required external components

Ease of integration into existing and new designs due to surface mount package format.

Frequently Asked Questions(FAQ)

What are the key electrical specifications of the ADP2119ACPZ-1.2-R7 buck regulator when designing a 1.2V power rail for a low-power embedded system, and how do its input voltage range and switching frequency influence topology selection?
The ADP2119ACPZ-1.2-R7 provides a fixed 1.2V output at up to 2A load current, making it suitable for core logic supplies in space-constrained applications. Its input range of 2.3V to 5.5V allows direct connection from standard Li-ion batteries or USB power rails without additional pre-regulators. The 1.2MHz switching frequency enables the use of smaller inductors and ceramic capacitors compared to lower-frequency alternatives, which is critical in portable devices where board area and transient response are tightly coupled. This high frequency also reduces audible noise, though it increases switching losses slightly.
How does the synchronous rectification feature in the ADP2119ACPZ-1.2-R7 improve efficiency over an asynchronous design, and what measurable impact can be expected under typical 2A load conditions?
Synchronous rectification replaces the body diode in the freewheeling path with a low-resistance MOSFET, reducing conduction losses—especially at higher currents like 2A. In the ADP2119ACPZ-1.2-R7, this results in typical efficiency gains of 5% to 10% compared to equivalent asynchronous regulators operating between 3.3V and 5V input. At 2A output with a 3.7V input, efficiency may reach 90–92%, whereas an asynchronous version might drop below 85%. This directly translates to longer battery life in mobile designs.
When comparing the ADP2119ACPZ-1.2-R7 with other buck regulators in Analog Devices’ portfolio, such as the ADP2386 or LT8610, which factors should guide selection between them in a compact, thermally constrained application?
The ADP2119ACPZ-1.2-R7 is optimized for ultra-compact, high-efficiency 1.2V outputs using a 10-LFCSP package, while the ADP2386 offers dual outputs at lower frequencies and larger packages, trading size for flexibility. The LT8610 supports higher input voltages and wider output ranges but uses a larger QFN package and typically operates at lower switching frequencies. In thermally constrained designs requiring a single 1.2V rail, the ADP2119ACPZ-1.2-R7’s combination of high switching frequency, synchronous operation, and small footprint makes it more suitable than either alternative.
What layout considerations are essential when implementing the ADP2119ACPZ-1.2-R7 to ensure stable operation and meet EMI requirements, especially given its high 1.2MHz switching frequency?
Minimizing loop inductance in the high-current paths—particularly between the input capacitor, switch node, inductor, and output capacitor—is critical. The ADP2119ACPZ-1.2-R7 should be placed close to the load, with short, wide traces for VIN, SW, and GND connections. A solid ground plane under the IC helps manage heat and reduces parasitic inductance. Input and output capacitors must be placed within 2mm of the IC pins, preferably using low-ESR ceramic types (e.g., X5R/X7R) rated for at least 10V. Proper thermal vias under the exposed pad enhance heat dissipation and improve long-term reliability.
Can the ADP2119ACPZ-1.2-R7 be used in automotive environments, and what environmental certifications or derating guidelines should be applied given its -40°C to 125°C junction temperature rating?
While the ADP2119ACPZ-1.2-R7 has a TJmax of 125°C and is RoHS3 compliant, it is not automatically qualified for automotive systems unless explicitly tested per AEC-Q100 standards. For non-automotive industrial or commercial use, designers should ensure PCB copper thickness supports adequate thermal performance; a 2oz inner layer with multiple thermal vias under the exposed pad is recommended to keep case temperatures below 85°C at 2A continuous load. Derate current capability by ~10–15% near maximum ambient if operating near TJmax.
What external components are minimally required for stable operation of the ADP2119ACPZ-1.2-R7, and how do their values affect transient response and stability margin?
At minimum, the ADP2119ACPZ-1.2-R7 requires one 1µF ceramic input capacitor, one 2.2µF output capacitor, and a feedback resistor network (though it is internally set to 1.2V). The output capacitor ESR must remain below approximately 30mΩ to maintain stability across all operating conditions. Lower ESR improves transient response but may reduce phase margin if too low; typical designs use two parallel 10µF X7R ceramics to meet capacitance needs while staying within ESR limits. Inductor selection should target 0.47µH to 1µH with saturation current >2.5A to avoid droop during load steps.
How does the ADP2119ACPZ-1.2-R7 handle start-up behavior when powered from a battery with significant internal resistance, and what precautions prevent inrush current issues?
The ADP2119ACPZ-1.2-R7 features soft-start control that limits di/dt during turn-on, reducing inrush current. However, if the battery has high series resistance (e.g., aged Li-ion), the soft-start duration may extend, increasing total turn-on time. To mitigate risks, place a small NTC thermistor or pre-charge circuit in series with VIN only if the source cannot tolerate sustained current during start-up. Avoid bulk electrolytic capacitors at the input unless filtered with a ceramic bypass due to potential instability during initial charging.
Is it feasible to parallel two ADP2119ACPZ-1.2-R7 units to increase output current capacity, and what challenges arise in doing so?
Direct paralleling is not recommended due to mismatched regulation characteristics and potential circulating currents. Even minor variations in output voltage or reference accuracy can cause one device to dominate while the other remains idle. If higher current is needed beyond 2A, redesigning with a different regulator or adding external pass elements is preferable. Alternatively, consider using a multi-phase controller architecture, but the ADP2119ACPZ-1.2-R7 lacks built-in sequencing or load-sharing features required for safe parallel operation.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. ADP2119ACPZ-1.2-R7

Product Attribute ADP2119ACPZ-1.0-R7 ADP2119ACPZ-1.5-R7 ADP2119ACPZ-1.8-R7 ADP2119ACPZ-2.5-R7
Part Number ADP2119ACPZ-1.0-R7 ADP2119ACPZ-1.5-R7 ADP2119ACPZ-1.8-R7 ADP2119ACPZ-2.5-R7
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Mounting Type - Surface Mount Through Hole Surface Mount
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Frequency - Switching - - - -
Series - - - -
Voltage - Input (Min) - - - -
Output Configuration - - - -
Voltage - Input (Max) - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Current - Output - - - -
Topology - - - -
Function - - - -
Voltage - Output (Max) - - - -
Voltage - Output (Min/Fixed) - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Synchronous Rectifier - - - -
Number of Outputs - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

ADP2119ACPZ-1.2-R7 Datasheet PDF

Download ADP2119ACPZ-1.2-R7 pdf datasheets and Analog Devices Inc. documentation for ADP2119ACPZ-1.2-R7 - Analog Devices Inc..

Datasheets
Cylindrical Battery Holders.pdf
PCN Assembly/Origin
2.73KHz.pdf
Other Related Documents
Tape and Reel Packaging.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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ADP2119ACPZ-1.2-R7 Image

ADP2119ACPZ-1.2-R7

Analog Devices Inc.
32D-ADP2119ACPZ-1.2-R7

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